chore(deps): update openai-go to v3.55.0

[openai-sdks]

Updates github.com/openai/openai-go/v3 to v3.55.0.

This pull request is maintained by the hourly openai-go updater.

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

5 mixed files remain; 0 existing customizations changed.

Compared e2e2bc81b8c3 → ada912916b58. Generated baselines verified.

5 existing customizations unchanged

• pkg/cmd/adminorganizationcertificate.go
• pkg/cmd/cmd.go
• scripts/castiron/README.md
• scripts/castiron/custom_code_report.py
• scripts/castiron/test_custom_code_report.py

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 33580333203 --repo openai/openai-cli \
  --name castiron-custom-code-33580333203-1 --dir /tmp/castiron-custom-code-33580333203-1
git apply --stat /tmp/castiron-custom-code-33580333203-1/custom-code.patch
cat /tmp/castiron-custom-code-33580333203-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin e2e2bc81b8c3fa5638e67eda63e7683e7a190f9a ada912916b58adeacb71d111d6dcd609723ce6f4
python3 scripts/castiron/custom_code_report.py report \
  --base e2e2bc81b8c3fa5638e67eda63e7683e7a190f9a \
  --head ada912916b58adeacb71d111d6dcd609723ce6f4 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-ada912916b58
cat /tmp/castiron-custom-code-ada912916b58/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch